Bookcase.



No. 865,114. PATENTED SEPT. 3, 1907.

- D.l MAPES.

BOOKGASE. uLIoAfl-Iox rILnD .mun 1. 190e.

UNITED sTATEs PATENT oEEroE.

DORCHESTER MAPES, OF CHICAGO, ILLINOIS, ASSIGNOR TO CLARENCE K. CIIAMBERLAIN, OF

. CHICAGO, ILLINOIS.

BOOKCASE.

Specification of Letters Patent.

:Patented sept. 3, leo?.

Application led June 7,1906. Serial No. 320,510.

To all whom it may concern:

13e it known that I, Donenns'rnn MAPES, a citizen of the United States, residing at Chicago, in the county of Cook and State oi Illinois, have invented a new and usel'ul Improvement in Bookcases, of which the following is a specification.

My invention relates to furniture of the clasp which is access to the contents. As such doors are long and narro7 the tendency thereof is to be bound by lrictional contact of diagonally opposite corners with the endy attaching it to the rod ll.

pieces ol the units.

ly putting into practice the principles ol' my invention I am able to cause complete parallelism oi' movement in the doors, prevent all sticking or binding thereoi, and to give them a smooth, quiet and even move- ,f

ment, while the devices therefor are simple, inexpeni 1 may be readily moved backward and forward without sive and durable,

The principles oi' my invention are illustrated in the drawings, in which- Figure l is a perspective view oi a bookcase unit, provided with base and top-Fig. 2 is a top View oi such unit with the top or cornice removeduFig. 3 is a sectional view oi Fig. 2 on the dotted line 3 3. Fig. 4 is a sectional view of Fig. 2 on the dotted line 4 4. i Fig. i 5 is a clip to hold the carrier rods together, and Fig. G is a fractional view oi the inside of a door and an ati tachment thereior.

Further describing my invention with reference to the drawings: l is a sectional unit. 2 the base and 3 the top or cornice. in the usual way, having the end pieces 4, and may be provided with a horizontal partition 5, above which is thereby formed a horizontal pocket, Within which the mechanism of my device is inclosed and into which the door may be slid. 1n the end pieces above the partition 5, may be formed the rabbets G, which, as a protection against wear, may be lined with she/et metal or a strip ol angle iron 7. Fitted to the space or runway thus formed in the two ends is a door carrier which may be of any suitable construction, but which I preier to make as shown of a principal member or rod l0 and a hinging rod Il which may be secured together into a substantial structure by the clips 12 and I2. Upon the partition 5 may be mounted the small pulleys or sheaves 14 and 14 and l5 and 15/. Flexible at- 'lhe said unit is framed together tachments 16-16 are passed around the said sheaves and connect the opposite ends of the carrier to each other. This flexible means of attachment may consist of any Hexible material as wire or braided cable or a strong cord.

The clips by which the carrier rods are framed together may be .of any suitable construction. That shown in Fig. 5 is formed oi a strip ol sheet metal having the ends I8 and 18/ turned into tubular form to embrace the rods l() and 1l respectively. The end 18 is somewhat broader than the other and a free portion is turned down to i'orm the lug 19, having the opening 20. These clips should preferably be formed as right and lefts.

One end of the cord or attachment I6 may be secured to the carrier by passing it through the opening 20 ol the clip l2, and placing a knot therein. It is then passed around the sheaves 14 and 15/ and the other end secured to the right hand portion of the carrier by The cord 16/ is attached in like manner to the clip 12/ and after passing around the sheaves 14 and l5 has the iree end attached to the other end of the carrier as before. When thus secured the attaching means or cords should be ol substantially equal tension. When thus adjusted the carrier twisting, but Will retain a constant condition oi parl allelism of its parts with the corresponding portions of the unit on which it is mounted. It will be seen that an impulse tending to move it backward communicated to it at the right side end will be communicated in equal degree to the point at which it is applied and through the medium of the attaching cord 16 to the opposite end of the carrier which is thus drawn backward at the same time that the right side is pushed backward. A similar impulse communicated to the leit end oi the carrier will be communicated through the cord 16 to the right end oi the carrier, and any impulse wherever applied will be communicated through the medium of the attaching cords, so as to balance at the ends and equalize the carrier movement.

As shown in Fig. 2 the carrier is moved partly back. A door 25 is fitted between the forwardly projecting edges 4 oi the ends, and the iront rod 1]. of the carrier may be moved forward so as to be embedded in the groove 26 which may be formed in the upper portion of the door. A clip 27 or other suitable means of attachment may be mounted on the `door and by being turned over the rod 1l causes the door to be hinged thereon so as to give it a pivotal movement. When the parts are in the relativel positions last described the door will be closed as in Fig. l, but upon swinging the lower part of the door forward and upward through an are of 90 degrees it may be slid backward into the unit, the carrier causing the several parts thereof to move in lines exactly parallel to the corresponding parts of the unit and preventing any possibility of uneven movement or binding.

I claim'.

1. In a furniture unit, a door carrier slidably mounted therein, a door hinged to the carrier, sheaves at either end of the unit adjacent to the front edge, corresponding sheaves at the rear portion thereof, and cords passing between the front and rear sheaves and severally attached to the carrier so that an impulse given to either end of the carrier will be communicated independently thereof in the same direction to the other end of the carrier.

2. In a furniture unit, a door carrier slidably mounted therein, a door hinged to the carrier, sheaves at either end ot the unit adjacent to the front edge, corresponding sheaves at the rear portion thereof, and cords passing diagonally from front to rear sheaves and severally attached to the carrier so that an impulse given to either end of the carrier will be communicated independently thereof in the same direction to the other end of the carrier.

3. In a furniture unit, a door carrier slidably mounted therein, a door hinged to the carrier, sheaves at the front corners of the unit, sheaves placed diagonally from the ilrst mentioned sheaves, and cords passing over the sheaves and having their ends connected to the opposite ends of the carrier.

4. In a furniture unit, a door carrier slidably mounted therein, a door hinged to the carrier, a horizontal partition in the unit, sheaves at opposite corners of the partition, and a flexible connecting means passing over the sheaves and having its ends connected to the ends of the carrier.

In a furniture unit, a door carrier slidably mounted therein, a door hinged to the carrier, sheaves at the front and rear corners of the unit, and cords having their ends attached to opposite ends of the carrier and being interinediately passed over diagonally opposite front and rear sheaves.

(l. In a furniture unit, a runway on the inner faces of the ends, a carrier adapted to move in the runway, a door pivotally attached to the carrier, a horizontal partition below the door, and means mounted on the said partition for causing the carrier to remain parallel to the front and rear edges of the unit. Y

T. In a furniture unit, a door carrier, guiding means therefor, a door hinged to the carrier, sheaves at opposite front and rear corners of the unit, and cords passing over the sheaves and havingl their ends connected to the opposite ends of the carrier.

S. In a furniture unit, a door carrier, a runway therefor', a door hinged to the carrier, sheaves at opposite front and rear corners of the unit below the runway, and cords passing over the sheaves and having their ends connected to the opposite ends of the carrier. g

9. In a furniture unit, a door carrier, a runway therefor, a door hinged to the carrier, a horizontal partition below the runway, sheaves mounted at the front and rear corners of the partition, and cords passing over the sheaves and having their ends connected to the opposite ends of the carrier.

10. In a furniture unit, a door carrier, guiding means therefor, a door hinged to the carrier, sheaves at opposite front and rear corners of the unit, and iiexible connecting means passing over the sheaves and secured to the opposite ends of the door carrier, so that an impulse given to either end of the carrier will be communicated independently thereof in the same direction to the other end of the carrier.

11. A furniture unit having ends provided with runways, a plurality of rods spaced longitudinally of the unit and adapted to move in said runways and constituting a door carrier, means for securing the rods together whereby they move in unison in the runways, a door having a top rail provided with a longitudinal groove, means for securing one of said rods of the door carrier in said groove to form a pivotal connection of the door therewith, and means connected with said door carrier` for maintaining the same parallel at all times with the front and rear portions of the unit.

12. A furniture unit embodying ends having runways, a plurality of rods adapted to move in said runways and constituting a door carrier, clips securing the rods of the carrier together to cause them to move in unison, a door, means for pivotally securing said door to one of the rods of said carrier, and means connected to the carrier for maintaining the same parallel at all times with the front of said unit.

13. In combination with a furniture unit having runways in the ends, and having a slidable door, a pair of rods spaced apart and secured together to slide in said runways and constituting a door carrier, means for pivotally securing the door to said carrier, and means connected to the carrier for maintaining the same parallel at all times with the front of the unit.

14. In a furniture unit having runways in the ends, a door carrier comprising a principal member and a hinging rod or member placed longitudinally of the unit, means for securing the members together, a door having a top rail with a longitudinal groove, and means for securing the hinging rod in said groove to form a pivotal connection of -the door therewith.

I5. In a furniture unit having runways in the ends, a door carrier comprising a principal member' and a hinging member adapted to move in said runways, clips to secure the said members together, a door for the unit, and means for pivotally securing the door to one of said members.

1G. In combination with a furniture unit having runways in its ends, a slidable door, a carrier slidable within the runways and comprising a principal member or rod, and a hinging rod, means for securing the member and rod together, and means for pivotally attaching the door to the hinging rod. v

In witness whereof, I have hereunto set. my hand, this 1st day of .Tune A. D. 1906, in the presence of two subscribing witnesses. 4

DORCl-IESTER MAPES.

Witnesses C. K. CIIAMBERLAIN, A. S. PHrLLrPs. 

